US6058630A - Fluid seal for maintaining vacuum - Google Patents
Fluid seal for maintaining vacuum Download PDFInfo
- Publication number
- US6058630A US6058630A US09/368,944 US36894499A US6058630A US 6058630 A US6058630 A US 6058630A US 36894499 A US36894499 A US 36894499A US 6058630 A US6058630 A US 6058630A
- Authority
- US
- United States
- Prior art keywords
- tube
- reservoir
- tubing
- fluid
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 31
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/42—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow characterised by the input flow of inducing fluid medium being radial or tangential to output flow
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel
Definitions
- This invention relates to a suction device for creating a vacuum to remove materials from one location and deposit them at another location.
- the materials may be solids, gases, liquids or slurries.
- Beck, U.S. Pat. No. 4,409,746 discloses a dredge having a circular chamber into which high pressure fluid is pumped. A fluid outlet is also attached to the chamber. A vortex is created in the chamber at the location of intermitting pipes. The space between the pipes is employed as a low-pressure outlet so that the smaller of the pipes is fluidly coupled to the low-pressure vortex thereby causing fluid and materials to be suctioned into the chamber and exited through the outlet.
- a suction, or vacuum, is created by the fluid coupling of two sections of tubing of dissimilar size.
- the larger section of tubing has an open ended reservoir attached to one end thereof
- the smaller section of tubing has an end plate attached at a point approximately one third of its length. The longer portion of the smaller section of tubing is inserted into the larger tube until the end plate mated to the reservoir.
- a fluid medium such as water or air is pumped into the reservoir under high pressure filling the reservoir and encompassing the inner section of tubing.
- the space between the smaller section of tubing and the larger section of tubing is fluidly coupled to the reservoir.
- the application of the pressurized fluid medium from the reservoir to the space between the sections of tubing creates a low pressure within the inner tubing resulting in a vacuum or suction being effected at the intake of the inner tubing.
- a principal object and advantage of the present invention is the provision of a device for creating a vacuum.
- a still further object and advantage of the invention is the provision of device which uses high pressure fluid input which creates a vacuum at the outlet of an inner tube.
- Another object and advantage of the invention is the provision of device which uses relies on the application of pressurized fluid to a confined space between two tubes to create an area of low pressure at the outlet of the inner tube.
- Another object and advantage of the invention is the provision of suction system which will maintain suction so long as the ambient pressure at the inlet is less than the pressure created at the outlet of the inner tube.
- Another object and advantage of the invention is the provision of a device which creates a vacuum using a source of controlled fluid pressure so that the vacuum is maintained without reliance on the materials which are being suctioned.
- FIG. 1 is an assembly view of a portion of the apparatus of my invention.
- FIG. 2 is a perspective view of another version of the apparatus of my invention.
- the invention includes a chamber 1 having a longer section of tubing 2 mounted therein.
- the section of tubing 2 has a flange 3 formed along the length of the tubing so that the length of the portion L1 (the inlet) is approximately 1/3 of the total length of the tubing 2 and the length of the portion L2 (the outlet) is approximately 2/3 of the total length of the tubing 2.
- Approximately 1/3 of the length of the tubing 2 extends beyond flange 5.
- a larger diameter tubing 4 has a flange 5 formed at one end thereof so that the tubing 4 can be attached to the wall of the chamber 1.
- the tubing 4 fits over the entire exposed length of the outlet tubing 2 and extends beyond the end of the outlet of tubing 2.
- the chamber and the two sections of tubing can be attached as by bolts 6, 7 or other conventional fastening devices.
- a fluid inlet 8 is attached to the chamber 1.
- the diameter of the output aperture 9 of the chamber 1 is equal to the inner diameter of the tubing 4 so that a fluid path is provided between the outer wall of tube 2 and the inner wall of the tube 4. Approximately 1/2 of the length of the inner tube 2 may be used to provide this fluid path.
- FIG. 2 shows an inlet 14 mounted on the sidewall of the reservoir 1.
- bolts 12 and 13 may be used in lieu of opposite facing bolts 6 and 7 of FIG. 1. The other elements of FIG. 2 are the same as described in connection with the embodiment of FIG. 1.
- the device of FIGS. 1-2 operates when pressurized fluid such as air or water is applied to inlet 8 filling chamber 1.
- a portion of the pressurized fluid in chamber 1 is forced to exit the chamber at output aperture 9 filling the space between the tubing 2 and the tubing 4.
- the effects of the pressure of the fluid in chamber 1 and the velocity of the fluid in the space between the tubes creates a low pressure at the location V.
- the effect of the low pressure V is to suction materials, fluids, etc. at inlet 10 though the tubes 2 and 4 to outlet 11.
- the important feature of the present invention is its ability to maintain low pressure at location V (and thereby suction at inlet 10) so long as the pressure at location V is lower than the pressure at inlet 10. Suction at inlet 10 is maintained, for example, if the inlet 10 is initially placed in a fluid (and is being used as a dredge), then, the inlet is inadvertently or intentionally moved from the fluid to a location out of the fluid and into an area of different pressure.
- suction can be provided at the outlet 11, as required, to remove and relocate the materials from inlet 10 and outlet 11 to other locations or processes.
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/368,944 US6058630A (en) | 1997-06-16 | 1999-08-05 | Fluid seal for maintaining vacuum |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87676797A | 1997-06-16 | 1997-06-16 | |
US09/368,944 US6058630A (en) | 1997-06-16 | 1999-08-05 | Fluid seal for maintaining vacuum |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US87676797A Continuation-In-Part | 1997-06-16 | 1997-06-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US6058630A true US6058630A (en) | 2000-05-09 |
Family
ID=25368532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/368,944 Expired - Fee Related US6058630A (en) | 1997-06-16 | 1999-08-05 | Fluid seal for maintaining vacuum |
Country Status (1)
Country | Link |
---|---|
US (1) | US6058630A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6748679B2 (en) * | 2002-03-14 | 2004-06-15 | Arthur R. Myers, Jr. | Shellfish dredging apparatus |
US20120085003A1 (en) * | 2009-06-11 | 2012-04-12 | Joseph Michael Goodin | in and relating to dredging apparatus |
US8719997B1 (en) * | 2010-02-26 | 2014-05-13 | Guardair Corporation | Pass-through vacuum |
WO2018012987A1 (en) * | 2016-07-13 | 2018-01-18 | Fjord Flow As | Combined jacket ejector and centre ejector pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1444069A (en) * | 1921-06-18 | 1923-02-06 | Ottawa Silica Co | Flow accelerator for pipe-line sand conveyers |
US2019968A (en) * | 1933-07-14 | 1935-11-05 | Herman H Holloway | Dredging apparatus |
US3457863A (en) * | 1968-02-07 | 1969-07-29 | Cyril L Carter | Jet pump booster |
US4322897A (en) * | 1980-09-19 | 1982-04-06 | Brassfield Robert W | Airlift type dredging apparatus |
US4991321A (en) * | 1990-06-21 | 1991-02-12 | M-B-W Inc. | Pneumatic device for excavating and removing material |
-
1999
- 1999-08-05 US US09/368,944 patent/US6058630A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1444069A (en) * | 1921-06-18 | 1923-02-06 | Ottawa Silica Co | Flow accelerator for pipe-line sand conveyers |
US2019968A (en) * | 1933-07-14 | 1935-11-05 | Herman H Holloway | Dredging apparatus |
US3457863A (en) * | 1968-02-07 | 1969-07-29 | Cyril L Carter | Jet pump booster |
US4322897A (en) * | 1980-09-19 | 1982-04-06 | Brassfield Robert W | Airlift type dredging apparatus |
US4991321A (en) * | 1990-06-21 | 1991-02-12 | M-B-W Inc. | Pneumatic device for excavating and removing material |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6748679B2 (en) * | 2002-03-14 | 2004-06-15 | Arthur R. Myers, Jr. | Shellfish dredging apparatus |
US20120085003A1 (en) * | 2009-06-11 | 2012-04-12 | Joseph Michael Goodin | in and relating to dredging apparatus |
US8863413B2 (en) * | 2009-06-11 | 2014-10-21 | Joseph Michael Goodin | Dredging apparatus |
US8719997B1 (en) * | 2010-02-26 | 2014-05-13 | Guardair Corporation | Pass-through vacuum |
WO2018012987A1 (en) * | 2016-07-13 | 2018-01-18 | Fjord Flow As | Combined jacket ejector and centre ejector pump |
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FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20080509 |
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PRDP | Patent reinstated due to the acceptance of a late maintenance fee |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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Effective date: 20120509 |